18912858560

素因数分解:

$2^6\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1374481}}^1$

素因数の和:1374541

約数の個数: 56

約数和(自身を含む): 46083632496

約数和(自身を除く): 27170773936

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 160, 172, 215, 320, 344, 430, 688, 860, 1376, 1720, 2752, 3440, 6880, 13760, 1374481, 2748962, 5497924, 6872405, 10995848, 13744810, 21991696, 27489620, 43983392, 54979240, 59102683, 87966784, 109958480, 118205366, 219916960, 236410732, 295513415, 439833920, 472821464, 591026830, 945642928, 1182053660, 1891285856, 2364107320, 3782571712, 4728214640, 9456429280, 18912858560]

約数ペア:

[(1, 18912858560), (2, 9456429280), (4, 4728214640), (5, 3782571712), (8, 2364107320), (10, 1891285856), (16, 1182053660), (20, 945642928), (32, 591026830), (40, 472821464), (43, 439833920), (64, 295513415), (80, 236410732), (86, 219916960), (160, 118205366), (172, 109958480), (215, 87966784), (320, 59102683), (344, 54979240), (430, 43983392), (688, 27489620), (860, 21991696), (1376, 13744810), (1720, 10995848), (2752, 6872405), (3440, 5497924), (6880, 2748962), (13760, 1374481)]